Thread: SR20ve Breaking up @ 6000rpm+

my thoughts exactly


dont matter, weather changes day to day and so does the way a car runs


agreed



most likely not, bad knock sensor will throw code...and wont really affect how car runs

" its alot cheaper then melting pistons " Awesome

I used to have this issue when i first tune my sr20ve will raw fuel table .. anything below 10.5 afr will make my engine back fire and hesitate to rev higher ...so im not sure you having the same problem or not.
By the way ... i bought wideband is not because the piston cost .. but the total energy and time just to get it done , nightmare espl for tight engine space... money cant buy time XD


KennyX

thanks guys

will look into all u saying

i have some #6 plugs in now

there is ecu code but it's 55, lol

will continue to monitor

will also try and swap the dizzy and see

problem is intermittent. i made a vid of 1st, 2nd and 3rd this morning (up to 9k) on the highway and it just would not break up, so i dont have a vid to share with u on how it sounds. lol

it did break up shortly after i put in the #6 plugs and drove around the blocks yesterday though

peace

Over-reacting... He doesnt need a wide band. Im sure he has access to one if he ever needs one also.

So if youre suggesting getting a read out. Suggest it.

How is the plug look like when you took it out .. so if it hv been covered with a lot carbon ..then already explain what is the problem.

KennyX

Would be nice to see what the afr is when it's breaking up to help diagnostics

ok guys. again thanks for the advice

my tuner is going to have the car for a while and he will look at the afr, etc

he will also data log it

having another little issue which i will try and sort out first, though

will keep u posted

peace

so i used some #6 iridiums i had and it felt ok going to work today

on my way to lunch (3/4 miles from my office), i felt a lil break up

on my way back it got worse and started to miss

didnt check it until i reached home later in the evening





the affected one was from #4 cyl

peace

putting in new set of spark plug to test it .. or you can clean it with gasoline if you wish to save some money ..then try to test a few round until that problem coming back to you ... then check the spark plug again

Possibility of bad injector ?
Individual injector trimming ultimate fail ?

KennyX

Check your injector and orings, it very well be flooding the cylinder (from the look of that plug)



Turbo heat keeps them from fouling for you though.